Edge states and enhanced spin-orbit interaction at graphene/graphane interfaces

Details Edge states and enhanced spin-orbit interaction at graphene/graphane interfaces Edge states and enhanced spin-orbit interaction at graphene/graphane interfaces

2009-10-28

arxiv.org/abs/0910.5333v1

Phys. Rev. B 81, 165439 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.81.165439

We study interfaces between graphene and graphane. If the interface is oriented along a zigzag direction, edge states are found which exhibit a strong amplification of effects related to the spin-orbit interaction. The enhanced spin splitting of the edge states allows a conversion between valley polarization and spin polarization at temperatures near one Kelvin. We show that these edge states give rise to quantum spin and/or valley Hall effects.

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